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USGS Daily Statistics for Massachusetts

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01105000 NEPONSET RIVER AT NORWOOD, MA


Norfolk County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°10'39", Longitude  71°12'05" NAD27
Drainage area 34.7  square miles
Contributing drainage area 34.7  square miles
Gage datum 43.25 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1939-10-01 -> 2024-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 71 68 91 134 82 58 34 20 19 26 44 62
2 73 71 96 135 79 58 32 20 22 26 43 62
3 72 80 102 134 76 58 30 17 22 26 45 61
4 74 86 100 133 75 55 29 16 21 28 44 59
5 74 81 96 132 73 54 28 17 18 27 44 60
6 69 75 97 130 71 58 27 15 19 28 43 62
7 69 76 102 126 69 61 26 18 20 28 43 66
8 69 80 102 119 66 63 24 28 19 26 41 66
9 69 73 105 113 70 57 26 28 19 28 44 65
10 69 69 105 110 73 51 27 28 19 27 44 67
11 68 70 102 108 72 48 25 27 20 26 44 69
12 67 73 103 103 69 47 24 26 21 25 47 75
13 69 75 106 102 67 48 24 25 21 23 49 75
14 70 79 117 103 69 57 25 24 21 27 50 75
15 72 77 126 100 67 53 24 23 23 37 50 76
16 72 79 125 105 67 48 22 23 23 36 49 72
17 68 79 125 109 65 49 22 22 23 35 50 76
18 68 81 129 104 63 48 21 25 26 32 48 80
19 69 82 125 101 63 43 19 34 27 32 45 71
20 71 83 121 97 62 40 19 34 27 35 45 67
21 72 80 118 94 61 37 21 30 26 40 50 68
22 71 79 126 93 58 35 23 26 26 35 53 71
23 71 80 128 96 54 35 24 25 26 35 55 71
24 80 84 124 96 54 33 28 23 24 35 56 72
25 90 93 121 93 57 33 26 23 25 36 60 74
26 97 97 116 90 61 31 24 22 28 38 61 75
27 93 93 116 91 58 30 24 21 28 39 62 79
28 89 92 115 90 55 32 23 23 28 39 58 77
29 81 88 117 87 53 33 22 21 30 42 57 73
30 75   128 83 52 34 21 20 28 45 59 73
31 71   131   54   20 20   44   70